Shuttle box operating mechanism foe looms



(No Model.) 2 SheetsSh eet 2.

HfWYMAN.

SHUTTLE BOX OPERATING MECHANISM FOR LOOMS. No; 603,522. I Patented May 3,1898.

. UNITED STATES PATENT OFFICE.

HORACE WYMAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE CROMPTON & KNOWLES LOOM WORKS, OF SAME PLACE.

SHUT TLE-BOX-OPERATING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 603,522, dated May 3, 1898.

I Application filed February 20, 1896- Serial No. 580,060. (No model.)

To all whom it may concern:

Be it known that I, HORACE WYMAN, of Worcestencounty of Worcester, State of Massachusetts, have invented an Improvementin Shuttle-Box-Operating Mechanism for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention in shuttle-box mechanism for looms has for its object to provide suitable means for automatically throwing out of peration the pattern-surface feed and the multiplier-feed on breakage of a weft or filling thread or when for anyreason it is desired to operate the loom for a considerable period of time with the same weft or shuttle, as when weaving the body of a blanket or other equivalent large body of fabric.

My invention is particularly adapted for use in connection with box mechanisms wherein the pattern-surface and multiplier feeds are actuated alternately-as, for instance, when connected with a common actuator and facing in opposite directionsso that one feed will operate on movement of the actuator in one direction, the other being operated on the return movement of the actuator. In mechanisms where two feeds are thus alternately op erated if when the loom is stopped one feed be thrown out of action and the other not thrown out of action the latter feed, when the loom is again started, will operate to impart a feeding movement to its mechanism before the first one can pick up or recover the feed which it lost when the loom was stopped, and therefore the said latter feed will overrun the first feed, and thereby throw the two out of proper timing one with relation to the other. To obviate this, when either of the threads is thrown out of action the other should likewise be thrown out and held out of action until the first has picked up or recovered the feed which it lost in order that in the subsequent operation of the loom the two threads may fol-. low each other in proper order as if no breakage had occurred.

One object of my present invention is to provide an improved mechanism for automatically throwing out of action both the patternsurface and multiplier feeds on breakage or slackening of a weft or filling thread and to hold one of the feeds out of action until the other, which first lost a feeding movement, shall have recovered the same.

My invention also comprehends suitable improved mechanism actuated from or controlled by the pattern mechanism to automatically throw out of action both the pattern and multiplier feeds when it is desired to operate the loom with a single shuttle or weft for a considerable period of time to thereby enable the pattern and multiplier surfaces to be shortened, the said feeds being again thrown into action by some moving part of the loom, as the take-up roll, at the end of a predetermined movement thereof.

In the drawings, Figure l, in vertical section and partial elevation, shows a sufficient portion of a loom embodying my invention to enable the latter to be understood; and Fig. 2, an enlarged detail showing a rear side view of some of the parts in different positions.

In the present instance for a disclosure of my invention I have elected to describe the same as embodied in a shuttle-box-operating mechanism substantially such as shown in my Letters Patent of the United States No. 364,696, dated June 14:, 1887, to which reference may be had, like letters and figures representing like parts; but I desire it to be understood that my invention is not limited in its application or use to the particular box mechanism shown in said patent, for my invention is not limited in this respect.

Referring to the drawings, the frame A, the breast-beam O, the cam-shaft D, the weftfork 40 and its slide, the hooked finger 6, the stop-rod 5, its arm 4, the pattern-surface e, the shaft 1*, on which the pattern-surface is mounted, the ratchet 2, its feed-pawl f which in the present instance constitutes the feeding device for the pattern-surface, the multiplier cam or surface 10, its ratchet l3,mounted on a stud 14 and actuated by the pawl 18, which in the present instance constitutes the multiplier feed device, and with the pat-ternfor instance, as fully shown and described in my said Patent No. 364,696and since the construction and operation of this type of box mechanism are Well understood by those conversant with the art it is considered unnecessary to here enter into a detailed description of the same, except to state generally that the movable lifter 19 is in the mechanism shown controlled by the pattern-surface 6 which also controls the box mechanism, and the pattern-feed lifter 7 is controlled by the multiplier-surface 10, the pattern and multiplier feeds being arranged to operate in opposite directions and alternately by the vibrations of the actuator 13, the latter, instead of being actuated precisely as in my earlier patent referred to, being herein actuated by an equivalent constructionviz., the rod g connected to a lever h, held in contact with a cape i on the cam-shaft by a suitable spring, asc

In the present embodiment of my invention (see Fig. 2) I have loosely mounted upon the stud 14, carrying the multiplier patternsurface,-a disengaging device m, of such shape and construction, for instance, as shown, that when moved from its full-line position, Fig. 2, it will act to separate the multiplier feed device 18 and the pattern-feed lifter 7 to move the one from possible engagement wit-h the teeth of its ratchet 13 and move the'other to remove the pattern-feed device f from engagement with the teeth of its ratchet 2. This disengaging device is shown as provided with a radially-extended arm, which is connected atits end by a rod m with a lever 111*, (see Fig. 1,) fulcrumed on the frame at m and connected at the opposite side its fulcrum bya link m with the arm 4 of the stoprod 5 of the automatic weft stop-motion for the loom.

When during the operation of the loom the weft-slide carrying the weft-fork 40 is moved to the right, Fig. 1, to stop the loom in wellknown manner because of the breakage or undue slackening of a weft-thread,the hooked finger 6 will be moved to rotate the stop-rod 5 and raise its arm 4 to thereby operate through the link m the lever m and rod m to depress the arm referred to and the disengaging device m and turn the latter in the direction of the arrow, Fig. 2, to throw out of action both feed devices in the manner described.

I have herein provided suitable means to hold the feed devices disengaged or out of action until such time as they can be again put into action in the same order in which they were operating when stopped, such means being herein shown in the form of a holding device, as a dog n, pivoted to the frame at n and notched at n to cooperate with a pin a on the lever m referred to, a spring of acting to press said dog toward the pin.

7 When the lever m is moved, as described, to throw out of action the multiplier and pattern feeds, the pin n is carried below the notch 17?, permitting the spring 02 to move the dog over the pin to hold the lever m in its new position with the feed devices out of action, the parts remaining thus held out of action until the proper time, usually the second pick after that at.which the loom was stopped, when in suitable manner the dog it will be disengaged to permit the lever m under the action of its spring m to move to again introduce the feed devices into action.

In the present embodiment of my invention for the release of the dog a, referred to, I have provided the lever 72 with an upwardlyextended arm h, which, as the cam 77* drops said lever, will engage the dog at and move it to release the lever m as described, and at this time if the lever 6 and weft fork and stick have been restored to their normal position for the usual operation of the loom the lever m will by means of spring m assume its normal position.

For throwing out of action both the pattern and multiplier feeds for considerable periods of time when it is desired to weave large bodies of fabric without change of shuttles l have herein provided a lever 0, (see Fig. 2,) fulcrumed upon the frame at 0 and adapted to be raised at the proper time by a roller or rollers 0 or other suitable change in or on the pattern-surface c, said lever being shown as provided with a depending rod 0 carrying at its lower end a notched or hooked head 0 adapted to lie normally beneath a pin 0 on the lever m referred to.

The roller 0 is introduced into the patternsurface at such point that when in the weaving of the fabric the body portion is reached it will pass under and lift the lever 0, and thereby through its hooked head 0 and the ICC pin 0 turn the lever m into its position described for throwing out of action both the multiplier and pattern feeds, said lever being at once looked in this new position by the dog a, referred to. To release the lever m when thus held by the hooked head 0 at the proper time, I have connected with said head a bar 0 adapted to rest upon and to be held in contact with a cylindrical shoulder 19 on and rotatable with a toothed wheel 19, (see Fig. 1,) a spring 19 being preferably employed to hold the bar 0 in operative contact with the said shoulder.

The wheel 19 is connected, through suitable gearing or otherwise, with a gear 19 in and rotatable with the take-up roller or shaft 10, said wheel p being also provided, preferably adjustably, with a finger p adapted to engage a roller or other stud p on the bar 0 so that at the proper time in the rotation of the wheel 19, which time is determined by the gearing between it and the take-up roller,

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the said finger 10 will engage the stud p and My invention is not limited to the. particu- I lar embodiment or construction herein shown, for it is evident the same may be varied without departing from the spirit and scope of my invention.

Having described my invention, and without limiting myself as to details, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a loom, the combination with a pattern-surface and its feed device, a multiplier and its feed device and a disengaging device, of an automatic stop mechanism, connections between said stop mechanism and said disengaging device and operating through the latter to throw both the said feed devices out of action on automatic stopping ofthe loom by the said stop mechanism, and means to retain said feed devices out of action after release of the same by said automatic stop mechanism, substantially as described.

2. In a loom, the combination with a pattern-surface and its feed device and a multiplier and its feed device, of an automatic stop mechanism, connections between said stop mechanism and said pattern and multiplier feed devices for throwing both the latter out of action on automatic stopping of the loom by the former, a holding device and means to operate it to retain the said feed devices out of action for one or more picks .of the loom after starting the latter, substantially as described.

3. In a loom, the combination with pattern and multiplier mechanisms and feed devices therefor, and actuating means to alternately operate the said feed devices, of an automatic stop mechanism for said loom, a disengaging device and connections between the same and said stop mechanism whereby the former is automatically moved to disengage said feed devices on automatic stopping of the loom by the latter, and means operable independent of said actuating means to retain said alternately-acting feed devices out of action through one or more picks of the loom, substantially as described.

4. In a loom, the combination wit-h the pattern and multiplier ratchets,feed-pawls therefor, and means to actuate the latter, of an automatic stop mechanism and connections between the same and said feed-pawls for automatically disengaging the latter from their respective ratchets on automatic stopping of the loom by the former, and means to retain said feed-pawls in their disengaged positions through one or more picks of the loom, substantially as described.

5. In a loom, the combination with the pattern and multiplier mechanisms, and the feed devices therefor, of a single disengaging device operable independent of but cooperatin g with bot-h said mechanisms to move the said feed devices out of action, an automatic stop mechanism and connections between the same and said. disengaging device to move the latter by or from the former.

6. In a loom, the combination with the pattern and multiplier mechanisms, feed-wheels therefor, the oppositely-actiu g feed-pawls cooperating therewith, and a common actuator for the said feed-pawls, of an automatic stop mechanism, means actuated thereby for lifting said feed-pawls out of engagement with their respective feed-Wheels on automatic stopping of the loom, and means to retain said feed-pawls in their lifted disengaged positions, through one or more picks of the loom, substantially as described.

7. In a loom, the combination with the pattern and multiplier mechanisms; ratchetwheels therefor; the feed-pawls; the common actuator for the same; and the lifters for the respective pawls, of the disengaging device for simultaneously disengaging both pawls; the lever to which said disengaging device is connected; the automatic stop mechanism for operating said lever; the holding device for said lever and means to release it, substantially as described.

8. In a loom, the combination of the pattern and multiplier mechanisms, the feedwheels and feed-pawls therefor, automatic stop mechanism, and connections between the latter and said feed-pawls for automatically disengaging the latter and their feed-wheels on stopping of the loom by the former, means controlled by the said pattern mechanism automatically to throw out of action the said feed-pawls at the end of a predetermined movement of said pattern mechanism, a takeup roller, and means controlled thereby automatically to put said feed-pawls again into action at the end of a predetermined movement of the said take-up roller.

9. In a loom, the combination of the pattern and multiplier mechanisms; the feed devices therefor; a common actuator for said feed devices; a feed-disengaging device for throwing said feed devices out of action, a lever to which said disengaging device is connected, a holding device for said lever; the automatic stop mechanism, means controlled by said pattern mechanism to throw said feed devices out of action; a take-up roller, and means governed thereby to put said feed devices again into action.

10. In a loom, the combination of the pattern and multiplier mechanisms, the feed devices therefor, the actuator for said feed devices, a feed-disengaging device for throwing said feed devices out of action, a lever for operating said disengaging device, the automatic stop mechanism connected with and to move said lever, the lever-holding device, means controlled by the pattern-surface automatically to move said lever to disengage said feed devices, the take up roller, and means controlled thereby to move said leverholding device to release said lever for reengagement of the feed devices.

11. In a loom, the pattern and multiplier mechanisms, the feed-ratchets and cooperating feed-pawls therefor, the common actuator for said feed-pawls, a feed-disengaging device to disengage saidfeed-pawls and their ratchets, a lever for actuating said disengaging device,the lever-holding device and means to release it, the automatic stop mechanism to move said lever, a lever moved by the pattern-surface, a rod connecting said last-mentioned lever with and to move the lever for operating said disengaging device, the takeup roller, and means operated thereby to release said rod from engagement with said lastmentioned lever.

12. In a loom, the combination with the pattern and multiplier mechanisms, and the feed ratchets and pawls therefor, of means controlled by the pattern mechanism automatically to move said pawls out of engagement with said ratchets, a take-up roller, and means operated therebyautomatically to move said pawls again into engagement with said ratchets.

13. In a box mechanism for looms, two alternately-acting feed devices and parts fed by the same, and means for disengaging the active feed device from the part fed thereby while insuring retention of the inactive feed device out of engagement with the part fed thereby.

14. In a loom containing a box mechanism, two alternately-acting box-mechanism feed devices and parts fed thereby, an automatic stop mechanism for the loom, and means controlled thereby for disengaging the active feed device from the part fed by it while insuring retention of the inactive feed device out of engagement with the part fed by it.

15. Inaloom, containinga box mechanism, a plurality of box-mechanism feed devices, means to throw said feed devices temporarily out of action on stopping of the 100m, and means to hold said feed devices out of action after the starting of the loom until such time as they'can be again set in operation in the same order or sequence as when stopped, substantially as described. I

16. In a loom, the combination with the pattern and multiplier mechanisms and the respective feed devices therefor, of means controlled by the pattern mechanism automatically to cause disengagement of both said feed devices from their respective mechanisms, a take-up roller and connections automatically to cause rengagement of said feed devices with their respective mechanisms at the end of a predetermined length of movement of said take-up roller, substantially as described.

17. In a loom, the combination of the pattern and multiplier mechanisms, feed devices therefor,disengaging means to cause said feed devices to be simultaneously disengaged from their respective mechanisms, and means controlled by the pattern-surface automatically to operate said disengaging means, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HORACE WYMAN.

Witnesses:

JUSTIN A. WARE, SAMUEL B. SCHOFIELD. 

